Inner filter element



FIG. 1 is a top front right isometric view of an inner filter element showing the new design;

FIG. 2 is a bottom rear left isometric view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The portions shown in the figures in broken lines do not constitute part of the claimed design. 

CLAIM The ornamental design for an inner filter element, as shown and described. 